Diane Sawyer will be leaving her role as "World News" anchor to take on a new role at ABC News, and David Muir will be replacing her, the network announced Wednesday.

In a jaw-dropping announcement that has sent shockwaves through the media world, David Muir has revealed that he will be stepping down from his long-running role as anchor of ABC's World News Tonight.

Members of the Bay Area transgender community gathered at ABC7 News to watch Diane Sawyer's exclusive interview with Bruce Jenner and they shared their reactions.

Charles Gibson has served as anchor of 'World News' since May 2006. He announced Sept. 2, 2009, that he will retire from full-time employment at ABC News, in an email to his staff. ABC named Diane ...

Sept. 27, 2010 -- ABC's Diane Sawyer spoke with author Bob Woodward about his new book, "Obama's Wars" in an interview that first aired on "World News" on September 27, 2010.

Emotions ran high during Tuesday's episode of ABC World News Tonight. Anchor David Muir, 51, was at his desk for the 6:30 p. m. ABC slot when he paused the live broadcast to share a heartfelt ...